Means for virtual deskewing of high/intermediate/low DUT data

Details Means for virtual deskewing of high/intermediate/low DUT data Means for virtual deskewing of high/intermediate/low DUT data

1997-05-14

1999-11-09

Chin, Stephen

Pulse or digital communications

Synchronizers

713500, 713503, H04L 700

Patent

active

059828277

ABSTRACT:
A method and apparatus are provided for accomplishing virtual deskewing of device-under-test data received by a test system by skewing clock signals instead. In a preferred embodiment, the invention includes a receiver circuit which is capable of operating in a window compare mode to capture a transition of a data signal from either a low data state to a high data state or a high data state to a low data state. The receiver circuit receives a high-level comparator signal and a low-level comparator signal, which when properly deskewed, together indicate what state the data signal is in.

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